A 77-01 is a potent inhibitor of TGF-β type I receptor superfamily activin-like kinase ALK5 with IC50 of 25 nM.

A83-01 is a selective inhibitor of TGF-β type I receptor ALK5 kinase, type I activin/nodal receptor ALK4 and type I nodal receptor ALK7 (IC50 values are 12, 45 and 7.5 nM respectively).

DMH1 is a selective BMP receptor inhibitor with IC50 of 107.9 nM for ALK2, exhibiting no inhibition on AMPK, ALK5, KDR (VEGFR-2) or PDGFR.

EW-7197 is a potent ALK5 inhibitor. EW-7197 showed potent in vivo anti-metastatic activity, indicating its potential for use as an anti-cancer therapy.

GW6604 is a potent and selective ALK-5 inhibitor with potent anticancer activity.

GW788388 is a potent and selective inhibitor of ALK5 with IC50 of 18 nM, also inhibits TGF-β type II receptor and activin type II receptor activities, but does not inhibit BMP type II receptor.

ITD-1 is a novel and highly selective TGFβ pathway inhibitor. ITD-1 molecule turns stem cells into heart cells.

K02288 is a potent, and selective type I BMP receptor inhibitor with IC50 of 1.1, 1.8, 6.4 nM for ALK2, ALK1 and ALK6, showing weaker inhibition on other ALKs (3, 4, 5) and ActRIIA.

LDN-214117 is a potent and selective ALK2 inhibitor with IC50 of 22 nM; > 100 fold selectivity for ALK5; also inhibits BMP6(IC50=100 nM).

LY2109761 is a novel selective TGF-β receptor type I/II (TβRI/II) dual inhibitor with Ki of 38 nM and 300 nM, respectively; shown to negatively affect the phosphorylation of Smad2.

LY2157299 is a potent TGFβ receptor I (TβRI) inhibitor with IC50 of 56 nM. Phase 2.

LY3200882 is a novel, highly selective TGFβRI small molecule inhibitor.

ML347 is a selective BMP receptor inhibitor with IC50 of 32 nM for ALK2, >300-fold selectivity over ALK3. Also inhibits ALK1 activity with IC50 of 46 nM

Potent and selective inhibitor of the TGF-β type I receptor/ALK5 (IC50 = 2.5 nM). Exhibits ~ 5000-fold selectivity over p38 MAPK. Suppresses development of renal fibrosis in a unilateral ureteral obstruction model. Also reduces proteinuria, glomeruloscler

RepSox(E-616452; SJN 2511) is a potent and selective inhibitor of the TGFβR-1/ALK5 with IC50 of 23 nM and 4 nM for ATP binding to ALK5 and ALK5 autophosphorylation, respectively.

SB431542 is a potent and selective inhibitor of ALK5 with IC50 of 94 nM, 100-fold more selective for ALK5 than p38 MAPK and other kinases.

SB525334 is a potent and selective inhibitor of TGFβ receptor I (ALK5) with IC50 of 14.3 nM, is 4-fold less potent to ALK4 than ALK5 and inactive to ALK2, 3, and 6.

SD-208 is a potent, orally active ATP-competitive transforming growth factor-β receptor 1 (TGF-βRI) inhibitor (IC50= 49 nM)

TGFBR1-IN-1 is an ALK5 inhibitor extracted from patent WO2018004290A1, Compound 33, has an IC50 of 10-100 nM.

LSKL, Inhibitor of Thrombospondin (TSP-1) TFA is a latency-associated protein (LAP)-TGFβ derived tetrapeptide and a competitive TGF-β1 antagonist. LSKL, Inhibitor of Thrombospondin (TSP-1) TFA inhibits the binding of TSP-1 to LAP and alleviates renal interstitial fibrosis and hepatic fibrosis. LSKL, Inhibitor of Thrombospondin (TSP-1) TFA suppresses subarachnoid fibrosis via inhibition of TSP-1-mediated TGF-β1 activity, prevents the development of chronic hydrocephalus and improves long-term neurocognitive defects following subarachnoid hemorrhage (SAH). LSKL, Inhibitor of Thrombospondin (TSP-1) TFA can readily crosse the blood-brain barrier.

JL5 is a novel potent, selective BMP receptor inhibitor with IC50 of 1, <5 and 2 nM for ALK2/ACVR1, ALK3/BMPR1A and ALK6/BMPR1B, respectively.

ALK2-IN-4 is a potent ALK2 inhibitor extracted from patent WO2020086963A1, compound Formula I free base.